help fast. NGK CM-6 thread

[Speedy]

I have a afternoon devoted to my webster build and wondering what drill size I need and tap for a NGK CM-6?

are the taps common or is it special?
hope someone can answer so I can start cutting

 

[GailInNM]

The CM-6 thread is 10mm X 1.0 pitch. 9mm drill.
Fairly common sso taps are available at many auto supply stores and some hardware stores.
Gail in NM

 

[johanvanzanten]

Hi Speedy,

The NGK CM-6 sparkplugs have M 10 x 1 thread. This is a common tap (in the Netherlands)
You have to drill 9 mm. (or 9.153 to be precise )
Is that fast enough?

Regards, Johan.

 

[Speedy]

Gail and Johan thank you both
shop time here I come.